Home / 7,839.06-11,743.44-4,878.70

Finding the Fourth Proportional to 7,839.06, 11,743.44 and 4,878.70

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Solution

The fourth proportional to 7,839.06, 11,743.44 and 4,878.70 is: 7,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.06 : 11,743.44 = 4,878.70 : x
  2. Step 2: Convert to fraction form
    7,839.06/11,743.44 = 4,878.70/x
  3. Step 3: Cross multiply
    7,839.06x = 11,743.44 × 4,878.70
  4. Step 4: Simplify right side
    7,839.06x = 57,292,720.73
  5. Step 5: Solve for x
    x = 57,292,720.73/7,839.06
  6. Step 6: Final answer
    x = 7,308.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.